Lol. The "what do you ride" was just a facetiously rhetorical reference to how heavy old Schwinns are. Once the thing is mounted, it should be fine as there really shouldn't be any movement to cause drywall damage in my estimation. An extra effort to make sure it holds as well as it can would be to use a stud and use an anchor for the other mounting hole(s) as mentioned previously.
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"One of the most important days of my life was when I learned to ride a bicycle" -- Michael Palin